CVE-2026-41051

csync2 uses insecure temporary directories when compiled with C99 or later

CVSS 5.1 MEDIUMEPSS 0.1%CWE-367

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.1EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

13 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

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References